Issue #15162 has been reported by Eregon (Benoit Daloze).

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Bug #15162: Encoding::Converter.search_convpath(Encoding::ASCII_8BIT, Encoding::Emacs_Mule) crashes on MinGW
https://bugs.ruby-lang.org/issues/15162

* Author: Eregon (Benoit Daloze)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.6.0dev (2018-09-26) [x64-mingw32]
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
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It seems to work fine with String arguments, but not Encoding objects where it SEGV, at least in some runs.
See https://github.com/ruby/ruby/commit/f00bf242724d40d59a242c6bf9e567d18c9e1872#commitcomment-30650955

cc @MSP-Greg



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